OTTAWA — The federal agency in charge of security at Canada's airports has renewed screening contracts with three private-sector firms, GardaWorld, Securitas and G4S.

The Canadian Air Transport Security Authority says the total value of the contract extensions is about $2.6 billion. They'll run from April 2017 through March 2022.

CATSA says GardaWorld will receive contracts worth about $1.4 billion for 28 airports in Ontario, the three Prairie provinces and Northwest Territories.

Securitas Transport Aviation gets contract extensions worth $632 million for Quebec and the four Atlantic provinces, while G4S Secure Solutions gets extensions worth $510 million for British Columbia and Yukon Territory.